Charles Ellicott Commentary Joshua 4:10

"For the priests that bare the ark stood in the midst of the Jordan, until everything was finished that Jehovah commanded Joshua to speak unto the people, according to all that Moses commanded Joshua: and the people hasted and passed over." — Joshua 4:10 (ASV)

According to all that Moses commanded Joshua. — It would seem that the passage of the Jordan had been made the subject of some directions by Moses, though nothing is written concerning the manner of it in the Pentateuch. It is noticeable that if Israel had gone into the land when Moses brought them to the frontier at Kadesh-barnea, in the second year of the Exodus, they would have had no occasion to pass the Jordan at all. When the route was changed we cannot say, unless the journeying around the land of Edom (Numbers 21:4), when they left Kadesh the second time, because they were not permitted to cross that territory, marks the decision. If so, the fact suggests some interesting reflections.